Polymate Additives Co., Limited
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  Phenolic Antioxidants
Plaox-1010, Plaox-1076, Plaox-1098
Plaox-1024, Plaox-3114
Organophosphite Antioxidants
  Plaox-168, Plaox-626
  Amine Antioxidants
  Plaox-BODPA, Plaox-DNDPA
Plaox-DODPA, Plaox-DCDPA
  Thioester Antioxidants
  Plaox-DLTDP, Plaox-DSTDP
  Blended Antioxidants
  Plaox-B215, Plaox-B225
  Heat stabilizers
  Pherst-TPP, Pherst-ODPP
Light stabilizers
HALS (hindered amine light stabilizers)
  Palst-770, Palst-622, Palst-944
Palst-783, Palst-791
, Palst-3529
  UVA (Ultraviolet absorbents)

Pamsorb-531, Pamsorb-P
Pamsorb-234, Pamsorb-326
Pamsorb-327, Pamsorb-328
Pamsorb-1164, Pamsorb-1577

Flame retardants
Brominated Flame retardants

Plamtar-TBBA, Plamtar-BDDP
Plamtar-DBDPE, Plamtar-BTBPOE
Plamtar-HBCD, Plamtar-TTBPC

  Halogen free Flame retardants
  Plamtar-RDP, Plamtar-BDP
Plamtar-DOPO, Plamtar-DOPO-HQ
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    Organophosphite Antioxidants    
    Plaox-168 | Plaox-626    
    Antioxidant Plaox-168    

Chemical name: Tri-(2, 4-di-tert-butyl-phenyl)-Phosphite
Equivalent: Irgafos 168 ( Ciba SC )/ Alkanox 240 (Chemtura)
Molecular formula: C42H63O3P
Molecular weight: 646.93
CAS No.: 31570-04-4
Structural formula:

Physical properties

Appearance: White powder
Melting range: 182 ~ 187 Deg C

Flash point: 225 ˇăC
Specific gravity (g/cm 3 ), @20 ˇăC: 1.03

Solubility (g/ 100g solvent), @20 ˇăC

Water: 0.01
Methanol: 0.01

Acetone: 1
N-Hexane: 11



Appearance: White powder or granules
Clarity test: Clear
Melting point: 183.0 ~187.0 ˇăC
Volatile: 0.3% max
Acid value (mg KOH/g): 0.3%max

Hydrolyze time(h): 14 min
Transmittance (425nm): 98.0% min
Transmittance (500nm): 98.0% min
Free 2, 4-di-tert-butyl-phenol: 0.1% max
Assay: 99.0% min


Plaox-168 is a kind of phosphite ester antioxidant. It has a good synergistic with other antioxidants, for example, Plaox-1010, and Plaox-1076. It is widely used for PE, PP, PC resin, etc. The dosage is recommended to be 0.1 ~ 1.0 phr. Plaox-168 can be used in food contact plastics.




Phenolic Antioxidants
Plaox-1010 | Plaox-1076 | Plaox-1098 | Plaox-1024 | Plaox-3114
Amine Antioxidants
Plaox-BODPA | Plaox-DNDPA | Plaox-DODPA | Plaox-DCDPA
Thioester Antioxidants
Plaox-DLTDP | Plaox-DSTDP
Blended Antioxidants
Plaox-B215 | Plaox-B225

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